Panel for an oven



FIG. 1 is a front view of a panel for an oven showing my new design;

FIG. 2 is a left side view thereof, the right side view being a mirrorimage;

FIG. 3 is a top view thereof; and,

FIG. 4 is a bottom view thereof.

The details shown in broken lines form no part of the claimed design.

The ornamental design for a panel for an oven, as shown and described.